| Acronym | Meaning |
| VACSY | Variable-angle Correlation Spectroscopy |
| CPSS | Coulomb-repulsion Perturbed Stationary State |
| RET | Resonance Energy Transfer |
| FIOR | Fluid Iron Ore Reduction |
| ESI | Electronic Supplementary Information |
| APO | Aq.-phase Oxidn. |
| HRXPS | High Resolution X-ray Photoelectron Spectroscopy |
| AQMP | Air Quality Management Plan |
| PNNL | Pacific Northwest National Laboratory |
| ABL | Atmospheric Boundary Layer |